Through the dedicated tinySA support page I was forwarded to the tinySA groups.
I'm not sure whether hardware issues can be reported along this way.
I'm owning a tinyAS ultra, S/N SU-23080463.
Since some time I had doubt regarding the output level of the signal generator (appeared too low, significantly). But since that didn't doubt me, I didn't care about it - till now.
Yet I found that the LNA has got defective. With LNA, signal is negligible.
Self tests: 3, 4, 7, 10 - all Signal level Critical.
What to do?